Pattern electrode structure for electro-wetting apparatus

Abstract

A pattern electrode structure, which is stacked between a base material and a dielectric layer of an electro-wetting apparatus, includes a plurality of branch electrodes formed in a direction perpendicular to an arbitrary plane perpendicular to a plane formed by the pattern electrode structure to be spaced from each other at regular intervals, and a plurality of sub-branch electrodes formed to extend from the plurality of branch electrodes by as much as a predetermined length in an inclined direction, whereby, self-cleaning performance may be more efficiently exhibited even for small droplets.

What is claimed is: 
     
         1 . A pattern electrode structure for an electro-wetting apparatus, which is stacked between a base material and a dielectric layer of the electro-wetting apparatus, the pattern electrode structure comprising:
 a plurality of branch electrodes formed in a direction perpendicular to an arbitrary plane perpendicular to a plane formed by the pattern electrode structure to be spaced from each other at regular intervals; and   a plurality of sub-branch electrodes formed to extend from the plurality of branch electrodes by a predetermined length in an inclined direction,   wherein, among the plurality of sub-branch electrodes, a sub-branch electrode extending from one branch electrode among the plurality of branch electrodes is formed to be spaced from a sub-branch electrode extending from an adjacent branch electrode by a predetermined distance,   wherein the sub-branch electrode extending from the one branch electrode among the plurality of branch electrodes is placed between sub-branch electrodes extending from the adjacent branch electrode,   wherein the inclined direction of the plurality of sub-branch electrodes extended from same side of the plurality of branch electrodes is same, and   wherein the sub-branch electrode extending from the adjacent branch electrode is arranged between two sub-branch electrodes extending from one branch electrode among the plurality of branch electrodes and arranged vertically adjacent to each other.   
     
     
         2 . The pattern electrode structure of  claim 1 , wherein the plurality of sub-branch electrodes is formed to branch and extend from first and second sides of the branch electrodes. 
     
     
         3 . The pattern electrode structure of  claim 2 , wherein the plurality of sub-branch electrodes branching to the first and second sides of the branch electrodes is formed to be inclined in a same direction of an upward direction and a downward direction. 
     
     
         4 . The pattern electrode structure of  claim 2 , wherein a height at which the plurality of sub-branch electrodes branching to one side of the branch electrodes branch is different from a height at which the plurality of sub-branch electrodes branching to another side of the branch electrodes branch based on the branch electrodes. 
     
     
         5 . The pattern electrode structure of  claim 2 , wherein a height at which the plurality of sub-branch electrodes branching to one side of the branch electrodes is equal to a height at which the plurality of sub-branch electrodes branching to another side of the branch electrodes branch based on the branch electrodes. 
     
     
         6 . The pattern electrode structure of  claim 2 , wherein, among the plurality of sub-branch electrodes branching to the first and second sides of the branch electrodes, an inclined direction of the plurality of sub-branch electrodes branching to one side and the plurality of sub-branch electrodes branching to another side are different directions of an upward direction and a downward direction. 
     
     
         7 . The pattern electrode structure of  claim 6 , wherein a height at which the plurality of sub-branch electrodes branching to one side of the branch electrodes is different from a height at which the plurality of sub-branch electrodes branching to another side of the branch electrodes branch based on the branch electrodes. 
     
     
         8 . The pattern electrode structure of  claim 6 , wherein a height at which the plurality of sub-branch electrodes branch off to one side of the branch electrodes is equal to a height at which the plurality of sub-branch electrodes branch off to another side of the branch electrodes branch based on the branch electrodes. 
     
     
         9 . The pattern electrode structure of  claim 1 , wherein the plurality of sub-branch electrodes is formed to branch and extend from only one side of the branch electrodes.